If a rock falls from a height of 20 meters on Earth, the height H (in meters) after x seconds is approximately H(x) 20 4 9x 2 (a) What is the height of the rock when x 1 second x 1 1 seconds x 1 2 seconds x 1 3 seconds (b) When is the height of the rock 15 meters When is it 10 meters When is it 5 m...

a b c H 120491 H 2049 151 mete ...

If a rock falls from a height of 20 meters on Earth, the height H (in meters)

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If a rock falls from a height of 20 meters on Earth, the height H (in meters) after x seconds is approximately

H(x) = 20 – 4.9x²

(a) What is the height of the rock when x = 1 second?

x = 1.1 seconds? x = 1.2 seconds? x = 1.3 seconds?

(b) When is the height of the rock 15 meters? When is it 10 meters? When is it 5 meters?

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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Question Posted: Dec 27, 2018 10:50 AM

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If a rock falls from a height of 20 meters on Earth, the height H (in meters)

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Precalculus

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